<template>
     <div class="header">
        <van-icon name="arrow-left" class="icon" @click="toBack" />
        <div>{{ title }}</div>
        <div class="edit" v-if="edit" @click="handleEdit">
          {{
          store.state.edit ? "编辑" :"完成"
          }}
        </div>
     </div>
</template>
<script>
import { Toast } from 'vant';
import { useRouter } from "vue-router"
import {useStore} from 'vuex'
export default {
    props:["title","edit"],
setup(){
  const router = useRouter();
  const store = useStore();
  const toBack=()=>{
     router.back();
  };
  const handleEdit=()=>{
    if(store.state.cartList.length){
      store.commit("edit");
      store.commit("changeDelete")
    }else{
      Toast.fail('请添加商品到购物车!')
    }
  }
  return{
    toBack,
    handleEdit,
    store
  }
}
}
</script>
<style lang="less" scoped>
.header {
    background-color: #fff;
    height: 40px;
    font-size: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    border-bottom: 1px solid #d7d7d7;
    .edit {
      font-size: 16px;
      position: absolute;
      right: 15px;
      font-weight: normal;
    }
    .icon {
      position: absolute;
      left: 10px;
    }
  } 
</style>